Fix Issue 1844: Throw exception instead of crashing if the size of allocated array is too large (or…

runtime/vm/object.cc

Index: runtime/vm/object.cc
===================================================================
--- runtime/vm/object.cc	(revision 4769)
+++ runtime/vm/object.cc	(working copy)
@@ -7893,9 +7893,10 @@
 
 RawArray* Array::New(const Class& cls, intptr_t len, Heap::Space space) {
   if ((len < 0) || (len > kMaxArrayElements)) {
-    // TODO(iposva): Should we throw an illegal parameter exception?
-    UNIMPLEMENTED();
-    return null();
+    // TODO(srdjan): Verify that illegal argument is the right thing to throw.
+    GrowableArray<const Object*> args;
+    args.Add(&Smi::Handle(Smi::New(len)));
+    Exceptions::ThrowByType(Exceptions::kIllegalArgument, args);
   }
   Array& result = Array::Handle();
   {